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hammer [34]
3 years ago
15

Why do we have to pay if its just learning

Chemistry
1 answer:
Oxana [17]3 years ago
8 0

Answer:

what are we paying for?

Explanation:

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What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common?
Viefleur [7K]
They all can condense and manipulate light<span />
4 0
3 years ago
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N2 (g) + 2O2(g) = 2NO2 (g) ΔH = 66.4 kJ 2NO (g) + O2 (g) = 2NO2 (g) ΔH = -114.2 kJ the enthalpy of the reaction of the nitrogen
RSB [31]

Answer:

ΔH  = 180.6 kJ

Explanation:

Given that:

N2 (g) + 2O2(g) = 2NO2 (g)           ΔH = 66.4 kJ

<u>2NO (g) + O2 (g) = 2NO2 (g)         ΔH = -114.2 kJ                     </u>

N2 (g) + O2 (g) = 2NO (g)              ΔH  = ????

The subtraction of both equations would yield the unknown ΔH , therefore:

ΔH = 66.4 - ( - 114.2 kJ)

ΔH  = 180.6 kJ

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3 years ago
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What can you say about the activity?
maks197457 [2]

Answer:

I would put, A substance has two different parts of it, a pure substance and a compound and mixtures have two as well called, homogenous mixtures and hetrogeneous mixtures.

Explanation:

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3 years ago
Which of the following represents the molecules of one compound and<br> atoms of one element?
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3 years ago
Metallic pan is provided with a wooden plastic handle give reason​
AlladinOne [14]

The metallic pan iis most likely going to be used on a stove.

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Both wood and plastic are insulators, and they do not conduct heat or electricity. They will insulate your hands and protect them from the heat.

5 0
3 years ago
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